Question

In a family having 3 children, there may be no girl ,One girl ,two girls or three girls. so , the probability of each is 1/4. is this correct? justify

Answer 1

No it is not correct .
Let boys be B and girls be G
outcomes can be BBB , GGG , BBG , BGB , GBB, GGB, GBG , BGG
then Probability of 3 girls = 1/8
Probability of 0 girls = 1/8
Probability of 2 girls = 3/8
Probability of 1 girl = 3/8

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Answer 2

No it is not correct .

Let boys be B and girls be G

outcomes can be BBB , GGG , BBG , BGB , GBB, GGB, GBG , BGG

then Probability of 3 girls = 1/8

Probability of 0 girls = 1/8

Probability of 2 girls = 3/8

Probability of 1 girl = 3/8

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